'Marvel's Agents of S.H.I.E.L.D.' Billboards Keep It Simple [Photo]

Black on black. ABC has decided to revive the color scheme once reserved for rock stars (Metallica, Spinal Tap) for its latest "Marvel's Agents of S.H.I.E.L.D." promotional push.

The show is a television spinoff of last summer's blockbuster film "The Avengers." You can be forgiven for not instantly recognizing the logo as that of the governmental organization behind the supergroup's formation. ABC is probably aiming to stoke the enthusiasm of hard-core fans rather than casual viewers of the movie.

The billboards have gone up in Los Angeles less than three weeks before Comic-Con, where those hard-core fans may well do more damage to San Diego than the Chitauri (the alien invaders from the movie — again, no reason for you to remember that) did to New York.

"Marvel's Agents of S.H.I.E.L.D." will air Tuesday nights this fall on ABC. There's no debut date at this time, but the network is probably saving that tidbit and others for its panel at Comic-Con.